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Products > Enclosures > Digital Transmitter Module

Digital Transmitter Module

Customized Specifications Available!!!

 Optical Parameter

ITU-T / SONET	L-16.1/LR-1	L-16.2/LR-2
Optical budget (dB)	10~24	10~24
Center wavelength (nm)	1310	1550
Optical source	SLM	SLM
Shutdown optical power (dBm)	-50	-50
Spectral width (nm)	0.3 ~1	0.3 ~1
Optical eye diagram	ITU G.957 and GR-253-CORE
SMSR (dB)	30	30
Extinction ratio (dB)	8.2~ 9.5	8.2~ 9.5
Path penalty (dispersion) (dB)	0.2 ~1	1.3~ 2
Dispersion (ps/nm)	250	1600
Minimum optical return loss (dB)	-24	-24

 Electrical Parameter

	Min	Typical	Max
Supply voltage (Vdc)	4.75	5	5.25
Power consumption (W)	0.8		2
Input sensitivity data & clock voltage (Vpp)	0.3	0.8	1
Normalized back face voltage (mV)		500
Monitor bias voltage slope (MV/mA)	20
Laser Degrade Alarm
6-1, Activated (pin 8) (Vdc):	0		0.2
6-2, Deactivated (Vdc):	2.4		5.0
LDA - Activation Delay (ms)		200
LDA - Deactivation Delay (ms)		400
Shut Down Command - Enable Laser (Vdc)	0		0.8
Shut Down Command - Disable Laser (Vdc)	2.0		5.0
Response Time to Disable Laser (ms)		500
Response time to Enable Laser (ms)		500
Electrical Return Loss:
Clock 1MHz - 2.2GHz (dB):		9
Clock 2.2GHz - 2.8GHz (dB):		13
Data 1MHz-1.5GHz (dB):		13
Data 1.5MHz-2.5GHz (dB):		9
Clock and Data differential skew (ps):		40
Clock and Data differential voltage
Per complimentary rail (AC coupled into 50 ohm) (Vpp):	0.3		1.0
Per complimentary rail (Vpp):	0.15		0.5
Clock and Data rise time (20% - 80%) (ps):		150
Clock and Data fall time (80% - 20%) (ps):		150
Data Format:	(Scrambled NRZ)
Clock Duty Cycle (%):	40	50	60
Consecutive Identical Bits:	CID 72 bits
Logic level5:	TTL compatible